SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

Calamos Advisors LLC's Holding History (CIK: 0001316507)

Note: Option positions (PUT/CALL) are excluded.

Q2 2014
Shares 15,000 Value ($000) $1,522 Avg Close — Range —
Q1 2014
Shares 15,000 Value ($000) $1,401 Avg Close — Range —
Q4 2013
Shares 15,000 Value ($000) $1,410 Avg Close — Range —
Q3 2013
Shares 15,000 Value ($000) $1,280 Avg Close — Range —